How to add app-ads.txt to angular localized project on Firebase hosting

Question

I added app-ads.txt to src folder of my project.

In angular.json added "src/app-ads.txt" to "assets", that is:

"assets": [
    ....
    "src/app-ads.txt"             
 ],
 ...

Next step, I deploy the project to Firebase hosting:

1. npm install -g firebase-tools
2. firebase login
3. firebase init
4. during init wrote the "dist"
5. ng build --prod --localize
6. firebase deploy

After command number 5 in dist folder has 5 localized projects ().

If open any folder inside has an app-ads.txt file ().

But after deploying the file is missing.

How to fix it?